* If using external triggering, select the GPS tab <span style="color: red">'''(1)'''</span>
* Ensure timing is valid <span style="color: red">'''(2)'''</span>.
* Set the Programmed Output Pulse (POP) parameters (mode <span style="color: red">'''(3)'''</span>, pulse width <span style="color: red">'''(4)'''</span>, start date <span style="color: red">'''(5)'''</span>, start time <span style="color: red">'''(6)'''</span>(<strong>NOTE</strong>: the "now + 30 seconds" button uses your browser's time so make sure your operating system is set to local time), trigger interval <span style="color: red">'''(7)'''</span>) and click apply <span style="color: red">'''(8)'''</span>. The status should change to pending <span style="color: red">'''(9)'''</span>.
* The recommended default pulse width is 10 microseconds.